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net: phy: tja11xx: add initial TJA1102 support 

TJA1102 is an dual T1 PHY chip. Both PHYs are separately addressable.
Both PHYs are similar but have different amount of functionality. For
example PHY 1 has no PHY ID and no health monitor.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
alistair/sunxi64-5.8
Oleksij Rempel 2020-04-22 11:24:54 +02:00 committed by David S. Miller
parent d9cc193cf0
commit 8f469506de
1 changed files with 91 additions and 0 deletions
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91
drivers/net/phy/nxp-tja11xx.c
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@ -15,6 +15,7 @@
#define PHY_ID_MASK 0xfffffff0
#define PHY_ID_TJA1100 0x0180dc40
#define PHY_ID_TJA1101 0x0180dd00
#define PHY_ID_TJA1102 0x0180dc80
#define MII_ECTRL 17
#define MII_ECTRL_LINK_CONTROL BIT(15)
@ -40,6 +41,10 @@
#define MII_INTSRC_TEMP_ERR BIT(1)
#define MII_INTSRC_UV_ERR BIT(3)
#define MII_INTEN 22
#define MII_INTEN_LINK_FAIL BIT(10)
#define MII_INTEN_LINK_UP BIT(9)
#define MII_COMMSTAT 23
#define MII_COMMSTAT_LINK_UP BIT(15)
@ -180,6 +185,7 @@ static int tja11xx_config_init(struct phy_device *phydev)
return ret;
break;
case PHY_ID_TJA1101:
case PHY_ID_TJA1102:
ret = phy_set_bits(phydev, MII_COMMCFG, MII_COMMCFG_AUTO_OP);
if (ret)
return ret;
@ -344,6 +350,55 @@ static int tja11xx_probe(struct phy_device *phydev)
return PTR_ERR_OR_ZERO(priv->hwmon_dev);
}
static int tja1102_match_phy_device(struct phy_device *phydev, bool port0)
{
int ret;
if ((phydev->phy_id & PHY_ID_MASK) != PHY_ID_TJA1102)
return 0;
ret = phy_read(phydev, MII_PHYSID2);
if (ret < 0)
return ret;
/* TJA1102 Port 1 has phyid 0 and doesn't support temperature
* and undervoltage alarms.
*/
if (port0)
return ret ? 1 : 0;
return !ret;
}
static int tja1102_p0_match_phy_device(struct phy_device *phydev)
{
return tja1102_match_phy_device(phydev, true);
}
static int tja1102_p1_match_phy_device(struct phy_device *phydev)
{
return tja1102_match_phy_device(phydev, false);
}
static int tja11xx_ack_interrupt(struct phy_device *phydev)
{
int ret;
ret = phy_read(phydev, MII_INTSRC);
return (ret < 0) ? ret : 0;
}
static int tja11xx_config_intr(struct phy_device *phydev)
{
int value = 0;
if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
value = MII_INTEN_LINK_FAIL | MII_INTEN_LINK_UP;
return phy_write(phydev, MII_INTEN, value);
}
static struct phy_driver tja11xx_driver[] = {
{
PHY_ID_MATCH_MODEL(PHY_ID_TJA1100),
@ -375,6 +430,41 @@ static struct phy_driver tja11xx_driver[] = {
.get_sset_count = tja11xx_get_sset_count,
.get_strings = tja11xx_get_strings,
.get_stats = tja11xx_get_stats,
}, {
.name = "NXP TJA1102 Port 0",
.features = PHY_BASIC_T1_FEATURES,
.probe = tja11xx_probe,
.soft_reset = tja11xx_soft_reset,
.config_init = tja11xx_config_init,
.read_status = tja11xx_read_status,
.match_phy_device = tja1102_p0_match_phy_device,
.suspend = genphy_suspend,
.resume = genphy_resume,
.set_loopback = genphy_loopback,
/* Statistics */
.get_sset_count = tja11xx_get_sset_count,
.get_strings = tja11xx_get_strings,
.get_stats = tja11xx_get_stats,
.ack_interrupt = tja11xx_ack_interrupt,
.config_intr = tja11xx_config_intr,
}, {
.name = "NXP TJA1102 Port 1",
.features = PHY_BASIC_T1_FEATURES,
/* currently no probe for Port 1 is need */
.soft_reset = tja11xx_soft_reset,
.config_init = tja11xx_config_init,
.read_status = tja11xx_read_status,
.match_phy_device = tja1102_p1_match_phy_device,
.suspend = genphy_suspend,
.resume = genphy_resume,
.set_loopback = genphy_loopback,
/* Statistics */
.get_sset_count = tja11xx_get_sset_count,
.get_strings = tja11xx_get_strings,
.get_stats = tja11xx_get_stats,
.ack_interrupt = tja11xx_ack_interrupt,
.config_intr = tja11xx_config_intr,
}
};
@ -383,6 +473,7 @@ module_phy_driver(tja11xx_driver);
static struct mdio_device_id __maybe_unused tja11xx_tbl[] = {
{ PHY_ID_MATCH_MODEL(PHY_ID_TJA1100) },
{ PHY_ID_MATCH_MODEL(PHY_ID_TJA1101) },
{ PHY_ID_MATCH_MODEL(PHY_ID_TJA1102) },
{ }
};